$ git clone -n https://src.fedoraproject.org/rpms/tpm2-openssl.git /var/lib/mock/f41-build-859111-168554/root/chroot_tmpdir/scmroot/tpm2-openssl
Cloning into '/var/lib/mock/f41-build-859111-168554/root/chroot_tmpdir/scmroot/tpm2-openssl'...
$ git fetch origin 3a704ab2ebe698c4f167ef15658e1a97525ce479:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tpm2-openssl
 * [new ref]         3a704ab2ebe698c4f167ef15658e1a97525ce479 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a704ab refactor: rpmlint E: use-of-RPM_SOURCE_DIR (adrian.freihofer@gmail.com)